It was 4 degrees above zero Fahrenheit when I took this photo. I always leave the pop door open during the day and let them decide what to do regardless of weather. As long as there is not snow on the ground or a strong really cold wind is not blowing, they practically always choose to go outside.
I agree with the others, you don’t need supplemental heat, but you do need ventilation.
Pat’s Cold Coop (winter design) page:
Pat’s Big Ol' Ventilation Page
, it’s normally best to start your own thread when you ask these questions. You are more likely to get an answer instead of getting lost in the thread. Welcome to the forum by the way.
Part of the answer depends on your outside facilities. If you have good breeze protection where they are yet good ventilation, preferably higher up, you are way ahead of the game.
I’ve had chicks less than 6 weeks old go through outside temperatures in the mid 20’s Fahrenheit with no supplemental heat. Those chicks were raised in a brooder in the coop where one end was kept warm but the rest cooled down a lot, so they were acclimated. I do think that helps. Would I put six week olds outside in those temperatures if they had only been exposed to tropical conditions? Yes I would as long as the facilities were decent.
Some people feed and/or water in the coop, in the run, or both. There are a lot of different reasons for all of these. As long as they have access a little after they wake up it doesn’t matter. Do what is convenient for you.